Compressed-air door-closer.



K A, B. HANSON. COMPRESS'BD ATB, DOOR CLOSER.

APPLIOATON FILED 00T. 5, 1908*.

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A. E: ANSO-N, GOMPRESSED MR DOOR CLOSER.

APPLICATION TILE!) OCT. 5, X909.

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// a @www e? Fe-ation filed Gccixer 191123.

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ne county of li-ogeblc and a new and nipreseedAn .-ollonfing is a This a levies for Tio clos-nn doors of incans or" coni- ;lt pr nt it is customary to close 'die dmns ot ore c by means of a lever and michel', and 0. Weight of these hors it nani lly requires e D' 'Voie bodied :nin from ten to ,c 1 to close l mi ign part ot iny al f f nn l.nd piste-n rod being arranged at lie ond oiD iie oar op "11' 'hat 'i'everving iic nsnal air ln'aiio cylinders, and therefore lnot interfering with tlie arrangefo menl or opcifntion ot the air brake in nny way. 'ilio invention misists in the novel foaor' consti-notion lioieinattcr described, in 'lle claims, and sliown in the :iccoinpanying dramiigs, in Wine.:

figure 1 s side elevation ci' a car pirovided Willi my di e. Fig: 2 is a plan 1cien* or the car bottom, the sides and a drinn casing or w' in section. is a section on the line 'l-S of 1 ille car doors l `-ig is a. n the lino 1, the csr doors being' opened. en end elevation or" e car "with device' applied thereto, sho ng the posiv tion el' the parte the doors are closed.

in tlicso drawings, 1 represents an ore car of die usual cons'tinction and provided at one end with on air bi'ale cyli er 2 an air cylinder 3, and provided n the nsnal v., .si

air 4, The bottom oi tiis car is ded i e nenni donn. c-:lly and N doois .eli are coni by c a rotatable drinn 7 so t when the drum is r tfted in directic the ciiains are Wonndtnercnpon the Specification ci Letters etent.

Petentedug. 31, 1909. seme no. einen.

doors are lifted in a closed osition. This drum is provided with a. sha t 8 which projects outwardly at the end of the car opposite the sir bleke mechanism, and et its enter end is provided with a ratchet Wheel 9. A lever 10 n'orlrs npon this shaft and is provided with pivoted pawl 11 which en` from the ratchet, thus unwindft 8, drurn 7 and the ratchet 9 are lifted iciently to permit the installing of my device. This consists of a .cylinder 13 arranged at the ratchet end of the car and at right angles to tlie shaft 8. This cylinder is connecte to the trein pipe by an air pipe 14 in which is placed a hand operated valve 15. .1 piston 1G, shown in dotted lines, works in vthe cylinder 13 and carries a piston roodlof* which at its outer end carries a.' cross-head l? sliding in a alincnient with the cylinder 13 opposite side of the shaft 8. A drinn 19 is lined upon the shaft 8 and above the piston rod. the sliatt having been raised so that the Y:id drum 19 and a chain 20 secured to and Winding upon the drinn would clear the piston rod. The chain 20 is secured to the bead 1'?. 1V lien the doors are open the pirton is at the outer end of the cylinder 13 and the cross head adjacent the 'drinn 19 with the chain 2O found upon said drinn. 'llo close the doors it is only necessary to open the va lve 15 thus admitting compressed air irons the train pipe line into the cylinder 13 which forces the piston 1G forward toward the inner end of the cylinder moving cross head 19 along *.-lie guide Way to the opposite side of the cai, and nnwinding the chain 20 from 'the drinn 19. This rotates the drum 19, shaft 8 and drnni 7 and Winds the chain 6 upon seid drum 7 and closes the doors. 1t will also be understood that this and upon the .e drinn Y. 1n applying my device the' guide Way 18 arranged ince motion does no@ prevent the dosing oi "fue dosis in die usuei menne? by hemd in @ese eompfessed sii is not available when the doos vve'fej: to oe closed. 'But usueiiy the doois are eiosed when om* is to be moved and, oezoye moving, me eoupiod up-wih *die ai? ore-ke hose.. @s i1? die om* has not Doen @ending too iong fsaefe Wil?. be sodi ien; piessue in oyindei? and 'i-foin pine to ojoemie aile doof: closing mechanism.

d eieim isz- A device of the kind described comprising e ossbabie she, means for locking seid seit egsinsi ioetion, means carried by said shaft for lifting downwardly swing-- ing doors in e' closed posiijion when the shaft is roteed in one dieoion, e cylinder 'am mug-ed et right angies to The shat, a. piston iii die cylinder.; e, pisoo rod extending oeuostii end et igiit osgies to the shaft., :i drum on said eioove Huis pi'son sod, s @hein winding wed unwinding upon sai dium, sziid cha-im no foo die @isi o tod, die ehe-in ims um sind winding uponV oi mo'iemom oi *die plssesos-sf t'i iod, and iiieens oi sdmiting (iompiessed si iito said cyiiide;

2 The combination with an 'ore ear how ing dowiiwardiy sWir-ging doors, of a shaft iongitudimiiy esried by seid fear, a rotatable dum on seid seid drum and to the doors, a, awl and ratchet movement mechanism upon the sha'., the pswis permitting free rotaion of die shaft in e direction to e 'linder means 'for admitting compressed. zur to said cylinder, a piston therein, a piston rod, :i cross head carried by seid piston rod, a drumx'ed upon the shaft, and e chain connected to and Winding upon said drum, said chain being also connected io the cross head', ns said @hein unwinding from and rotating the 'isst mentioned dum in a dir cotion to close the doors upon movement of che piston sis/prossime.

ALBERT E. HANSON.

Winesses z Ems-sor E. Pmmzsoii Josemi RINGSMUN'H-i.

shaft, chains secured toV eiose the doors, a' 

